Homologous organs are

Options

A. Human eyes and squld eyes
B. Gills of fish and lungs of man
C. Hands of man and wings of bat
D. Leaf of moss and frond of fern

Answer

**Step-by-Step Text Solution:**

1. **Understanding Homologous Organs**:
- Homologous organs are defined as organs that have a similar anatomical structure and embryonic origin but perform different functions. This similarity in structure indicates a common ancestry.

2. **Analyzing the Options**:
- We will evaluate each option to determine if they fit the definition of homologous organs.

3. **Option 1: Human Eyes and Squid Eyes**:
- The human eye is an outgrowth of the nervous system, while the squid eye is derived from the skin. Since their origins are different, they cannot be considered homologous organs.

4. **Option 2: Gills of Fish and Lungs of Man**:
- Both gills and lungs serve the function of respiration. Since they perform the same function, they do not meet the criteria for homologous organs.

5. **Option 3: Hands of Man and Wings of Bat**:
- The hands of a man and the wings of a bat have a similar structural design (both are forelimbs) but serve different functions: the bat's wings are used for flying, while human hands are used for manipulation and grasping. This fits the definition of homologous organs.

6. **Option 4: Leaf of Moss and Frond of Fern**:
- The leaf of a moss and the frond of a fern are not structurally similar nor do they share a common embryonic origin. Therefore, they cannot be classified as homologous organs.

7. **Conclusion**:
- Based on the analysis, the correct answer is that homologous organs are the hands of man and the wings of bat.